Context Menu on DataGrid Row

hi
u can add  context menu on right click of a data grid row only as next
use the event mouse up
you should define your datagridview and your context menue 


// here the event of mouse up
  private void dataGridView1_MouseUp(object sender, MouseEventArgs e)
  {
  if (e.Button == System.Windows.Forms.MouseButtons.Right)
  {
  System.Windows.Forms.DataGridView.HitTestInfo myHitTest;
  myHitTest = dataGridView1.HitTest(e.X, e.Y);
  if (myHitTest.Type == DataGridViewHitTestType.RowHeader)
  {
  contextMenuStrip1.Show(dataGridView1, e.Location);
  }

  }
 
  }

Try this code
 
private void dataGridView1_MouseDown(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Right)
{
DataGridView.HitTestInfo hti = dataGridView1.HitTest(e.X, e.Y);
dataGridView1.ClearSelection();
dataGridView1.Rows[hti.RowIndex].Selected = true;
contextMenu.Show(dataGridView1,e.Location);
}
}

Find the row value of the datagrid
Loop and find the number of rows you are having in grid.
 
On mousedown event call the context menu on the row you clicked